CAS 1124-11-4 appears in our catalog under these names: Tetramethylpyrazine, Ligustrazine/ 100%, 2,3,5,6-Tetramethylpyrazine, 98+% , 2,3,5,6-Tetra-methyl-pyrazine, 2,3,5,6-Tetramethylpyrazine, >98.0%(GC)(T). Offered by: TRC, GLPBio, TargetMol, Thermo Scientific (Alfa Aesar), Biosynth. Available pack sizes: 10g, 100mg, 10mM (in 1ml dmso), 500mg, 25g, 100g, 2kg, 5g.